What is the activation energy for the decomposition
Dinitrogen tetraoxide, N2O4, decomposes to nitrogen dioxide, NO2,in a first-order process. If k = 2.5 × 103 s-1 at -5°Cand k = 3.5 × 104 s-1 at 25°C, what is the activation energy for the decomposition?
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If the amine is valuable then slightly more than 1equivalent of a 3 degree (tertiary) amine, such as triethylamine orpyridine is added.
When an acid chloride or acid anhydride is used to prepare an amide two equivalents of amide are required. Write reactions that can explain this.
One of the oldest chemical reactions known to man is the saponification reaction. All the carboxylic derivatives under go this type of reaction, but it is most commonly used for esters.
Calculate the volume of gas produced if your known sample vaporizes completely at your highest temperature for the known(disregard the air). You will need to look up the density and molecular weight of your known compound.
A cell is set up with copper and lead electrodes in contact with CuSO4(aq) and Pb(NO3)2(aq), respectively, at 25°C.
The reaction A + 2B yields products has been found to havethe rate law, rate= k[A] [B]2. While holding the concentration of A constant the concentration of B is increased from x to 3x. Predict by what factor the rate of reaction increases.
The structure of O-aminobenzoic acid can be determined by titration with 0.2M sodium hydroxide. How many mL of base would be needed to neutralize 0.5 g of starting material?
Suppose that in starting a car on a cold morning a current of 125 amperes is drawn for 15.0 seconds from a cell of the type described above.
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Sahir is the most active student in your kindergarten class. He tends to be very disruptive when the teacher you work with is teaching the class,
Which of the following is a behavioral indicator related to Family? A) Developing school readiness and transition strategies B) Developing collaborative
You are a social worker working with foster children. You are making a home visit to Katie, age nine, and her foster family.
Problem 1: Identify a specific theory of cognitive or moral development, and summarize the major assumptions.
Working in the yard, you feel unpleasantly hot and sweaty when you come in the house, so you take a shower and begin to feel better.
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Identify and discuss three ethical guidelines that are important to consider when designing an 8-week group for adolescents who are referred